LXR linux/drivers/accessibility/speakup/speakup

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * originally written by: Kirk Reiser <kirk@braille.uwo.ca>
   4 * this version considerably modified by David Borowski, david575@rogers.com
   5 *
   6 * Copyright (C) 1998-99  Kirk Reiser.
   7 * Copyright (C) 2003 David Borowski.
   8 *
   9 * specificly written as a driver for the speakup screenreview
  10 * s not a general device driver.
  11 */
  12#include "spk_priv.h"
  13#include "speakup.h"
  14
  15#define DRV_VERSION "2.11"
  16#define SYNTH_CLEAR 0x18
  17#define PROCSPEECH '\r' /* process speech char */
  18
  19static struct var_t vars[] = {
  20        { CAPS_START, .u.s = {"\x05P8" } },
  21        { CAPS_STOP, .u.s = {"\x05P5" } },
  22        { RATE, .u.n = {"\x05R%d", 5, 0, 9, 0, 0, NULL } },
  23        { PITCH, .u.n = {"\x05P%d", 5, 0, 9, 0, 0, NULL } },
  24        { VOL, .u.n = {"\x05V%d", 5, 0, 9, 0, 0, NULL } },
  25        { TONE, .u.n = {"\x05T%c", 12, 0, 25, 61, 0, NULL } },
  26        { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
  27        V_LAST_VAR
  28         };
  29
  30/* These attributes will appear in /sys/accessibility/speakup/txprt. */
  31
  32static struct kobj_attribute caps_start_attribute =
  33        __ATTR(caps_start, 0644, spk_var_show, spk_var_store);
  34static struct kobj_attribute caps_stop_attribute =
  35        __ATTR(caps_stop, 0644, spk_var_show, spk_var_store);
  36static struct kobj_attribute pitch_attribute =
  37        __ATTR(pitch, 0644, spk_var_show, spk_var_store);
  38static struct kobj_attribute rate_attribute =
  39        __ATTR(rate, 0644, spk_var_show, spk_var_store);
  40static struct kobj_attribute tone_attribute =
  41        __ATTR(tone, 0644, spk_var_show, spk_var_store);
  42static struct kobj_attribute vol_attribute =
  43        __ATTR(vol, 0644, spk_var_show, spk_var_store);
  44
  45static struct kobj_attribute delay_time_attribute =
  46        __ATTR(delay_time, 0644, spk_var_show, spk_var_store);
  47static struct kobj_attribute direct_attribute =
  48        __ATTR(direct, 0644, spk_var_show, spk_var_store);
  49static struct kobj_attribute full_time_attribute =
  50        __ATTR(full_time, 0644, spk_var_show, spk_var_store);
  51static struct kobj_attribute jiffy_delta_attribute =
  52        __ATTR(jiffy_delta, 0644, spk_var_show, spk_var_store);
  53static struct kobj_attribute trigger_time_attribute =
  54        __ATTR(trigger_time, 0644, spk_var_show, spk_var_store);
  55
  56/*
  57 * Create a group of attributes so that we can create and destroy them all
  58 * at once.
  59 */
  60static struct attribute *synth_attrs[] = {
  61        &caps_start_attribute.attr,
  62        &caps_stop_attribute.attr,
  63        &pitch_attribute.attr,
  64        &rate_attribute.attr,
  65        &tone_attribute.attr,
  66        &vol_attribute.attr,
  67        &delay_time_attribute.attr,
  68        &direct_attribute.attr,
  69        &full_time_attribute.attr,
  70        &jiffy_delta_attribute.attr,
  71        &trigger_time_attribute.attr,
  72        NULL,   /* need to NULL terminate the list of attributes */
  73};
  74
  75static struct spk_synth synth_txprt = {
  76        .name = "txprt",
  77        .version = DRV_VERSION,
  78        .long_name = "Transport",
  79        .init = "\x05N1",
  80        .procspeech = PROCSPEECH,
  81        .clear = SYNTH_CLEAR,
  82        .delay = 500,
  83        .trigger = 50,
  84        .jiffies = 50,
  85        .full = 40000,
  86        .dev_name = SYNTH_DEFAULT_DEV,
  87        .startup = SYNTH_START,
  88        .checkval = SYNTH_CHECK,
  89        .vars = vars,
  90        .io_ops = &spk_ttyio_ops,
  91        .probe = spk_ttyio_synth_probe,
  92        .release = spk_ttyio_release,
  93        .synth_immediate = spk_ttyio_synth_immediate,
  94        .catch_up = spk_do_catch_up,
  95        .flush = spk_synth_flush,
  96        .is_alive = spk_synth_is_alive_restart,
  97        .synth_adjust = NULL,
  98        .read_buff_add = NULL,
  99        .get_index = NULL,
 100        .indexing = {
 101                .command = NULL,
 102                .lowindex = 0,
 103                .highindex = 0,
 104                .currindex = 0,
 105        },
 106        .attributes = {
 107                .attrs = synth_attrs,
 108                .name = "txprt",
 109        },
 110};
 111
 112module_param_named(ser, synth_txprt.ser, int, 0444);
 113module_param_named(dev, synth_txprt.dev_name, charp, 0444);
 114module_param_named(start, synth_txprt.startup, short, 0444);
 115
 116MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
 117MODULE_PARM_DESC(dev, "Set the device e.g. ttyUSB0, for the synthesizer.");
 118MODULE_PARM_DESC(start, "Start the synthesizer once it is loaded.");
 119
 120module_spk_synth(synth_txprt);
 121
 122MODULE_AUTHOR("Kirk Reiser <kirk@braille.uwo.ca>");
 123MODULE_AUTHOR("David Borowski");
 124MODULE_DESCRIPTION("Speakup support for Transport synthesizers");
 125MODULE_LICENSE("GPL");
 126MODULE_VERSION(DRV_VERSION);
 127
 128